P0171 diagnostic trouble code discussion for feb 2015 on iatn. Basically this means that an oxygen sensor in bank 1 detected a lean condition too much oxygen in the exhaust. Obd ii fault code p0171 is a generic code that is most commonly defined as system too lean bank 1, and is set on gasoline engines when the pcm powertrain control module detects that the airfuel mixture is too lean. P0174 system too lean bank 2 p0175 system too rich bank 2 what common symptoms indicate you may need to replace the mass air flow sensor. Check engine light popped on and autozone tech said the code its throwing p0171 is probably oxygen sensor issue. Powertrain fuel and air metering isosae controlled location. Most complete list for chevy check engine light codes. If you are seeking an automotive repair professional to service your vehicle, visit the iatn repair shop finder. Camshaft position sensor b bank 1 on a chevrolet cruze 2012 lt 1. She took the car in again today and now she failed for drive cycle not complete but no failed code. In this video im going to show you how to diagnose a lean condition, but the. It is equipped with lots of fun features like backup camera, bluetooth capabilities, great stereo system, onstar, and much more. Code p2097 stands for post catalyst fuel trim system too rich bank 1. P2096 is a diagnostic trouble code dtc for post catalyst fuel trim system too lean bank 1.
This is a professional automotive technicians resource. I cleaned the maf sensor and the permanent code went away but now popped up again as a normal code i dont know if i have bad o2 sensor or vacuums leak. Click here to visit our frequently asked questions about html5. Heres a great youtube video on finding out what is causing the p0171 code to be thrown on your cruze. How to diagnose and fix a lean condition chevy cruze p0171. Chevy cruze inside l k p0171 traction control alert failed pcv. P0171 system too lean bank 1 chevy trailblazer fixed with no parts duration. P0171 system too lean bank 1 chevy trailblazer fixed with. P0171 chevy cruze diagnosis and explanation drivetrain. An engine needs the correct amount of air and fuel to run properly. Its a small car, but once you get inside it is very roomy and comfortable in both the front seats and the rear ones too.
The airfuel ratio is measured in the exhaust stream by the oxygen o2 sensors. This is a huge file 48 pages so its probably easiest to use your scroll function to locate the code youre looking for. Chevy cruze p1101 and p0171 trouble codes drivetrain. This dtc is very similar to p0174, and in fact your vehicle may show both codes at the same time. The system features an easytosee 7inch touch screen that has apple carplay and android auto connectivity standard, plus 4g lte that turns the car into a wifi. I had the light reset and it drove for a while without the sensor coming on. The code indicates that your cars computer has detected a lean running. Chevrolet p0171 fuel trim system lean bank 1 car obd codes. There is a coolant leak that was fixed by the radiator connector. Hi, i would like to know the location of camshaft position sensor b bank 1 on a chevrolet cruze 2012 lt 1.
Bought my used 2011 chevy cruze a couple months ago at a certified mercedes dealership. How to diagnose and fix a lean condition chevy cruze. Learn what does p2096 post catalyst fuel trim system too lean bank 1 means, location and how to repair. The accompanied symptoms for a map sensor fault could include lack of power, rough idle, as well as too high or too low idle speed. Every car built since 1996 has an obd computer system that monitors and identifies issues. After talking around with a few skilled mechanics, ive heard that the repair amount for a shop to do it is a little out of my price range and since im not the worst person to ever work on a car, ive decided to do the repairs myself and save a little money. Fuel delivery is controlled differently during open loop and closed loop. The map sensor measures the absolute pressure inside the engine intake manifold which is directly related to the engine load. Chevrolet service repair manual chevrolet online service. I am getting the following fault codes on my 2012 cruze. P0171 code chevy cruze check engine light lean bank 1.
Ive been getting the p0171 and p1101 codes, i fixed the pcv valvecam shaft and the intake manifold. I have a 2012 chevy cruze my and i have a code that poppe. There is oil leaks that have been fixed that occur again. I dont know how to tell if the o2 sensor is bad or if itfs a vacuums leak. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
P0171 chevrolet fuel trim system lean bank 1 lean means its referring to fuelair ratio of the o2 sensor. This vehicle chevy cruze 2012 is the worst vehicle made possible. I cleaned the maf sensor and the permanent code went away but now popped up again as a. P01 chevrolet ho2s circuit low voltage bank 1 sensor 1. P0171 chevrolet meaning the engine control module controls the airfuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. The oxygen sensor varies the voltage over a range from about 1,000 mv when the exhaust is rich, down through about 10 mv when the exhaust is lean. I did some research and ended up changing the coil pack and evap cover. This code will trigger the check engine light as follows. We do not have any compatible chevrolet cruze seat cover. During open loop, the ecm determines fuel delivery based on sensor signals without heated oxygen sensor ho2s input. What could be better than a highquality chevrolet cruze exhaust system offered with an amazing low price guarantee. The obdii trouble code p0171 system too lean bank 1 means that the engine airfuel mixture is too lean, or there is too much air and too little fuel.
Welcome to the chevy check engine light codes page. Ive got a p0171 system too lean bank 1 code on my 2011 cruze 1. Dtc p0171 definition, category, faulty system and component. The adaptive fuel strategy in the vehicles computer constantly monitors the fuel delivery system to make sure the engine is running at an optimum air to fuel ratio, which is 14. In this context, lean refers to a condition where there is too much air relative to fuel in the mixture. A ratio that has too much oxygen in it is said to be lean, whereas a ratio with too much fuel is said to be rich. Which seems too indicate that the pcv valve may be the likely culprit, though i dont really know enough about how everything else listed works to know if one of those other things may be the root of it.
Dtc p0171 system too lean bank 1 basically this means that an oxygen sensor in bank 1 detected a lean condition too much oxygen in the exhaust. Driving a car with the code p0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher. This code number references a number that is given to you when you plug your car into a obdii scanner. System too lean cylinder bank 2 diagnostic trouble code dtc p0174 stands for system too lean bank 2. Obdii diagnostic trouble code dtc p0171 definition, category, faulty system and component. Fault codes p015b, p0171, p2270, b2aaa car forums at. Trouble code 35 chevrolet cruze cruze chevrolet cars. If you have ever been driving and your check engine light came on, you likely had an instant reaction of panic followed by the question, why is the check engine light on in my new chevy. Onboarddiagnostic obd trouble codes are one way your vehicle communicates with a mechanic. P0171 diagnostic trouble code discussion for february 2015 fuel system lean bank 1 note.
Chevrolet cruze manages to remain poised, with minimal body roll and lean. P0171 fuel system too lean bank 1 monitor strategy description. P0171 chevrolet description the engine control module controls the airfuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. How does a p0171 code trigger the check engine light. The code indicates that your cars computer has detected a lean running condition. Determines if the fuel control system is in a lean condition, based on the filtered longterm and shortterm fuel trim. P015b o2 sensor delayed response lean to rich bank 1 sensor 1 p0171 system too lean, bank 1 p2270 o2 sensor signal biasedstuck lean bank 1. P1157 ho2s bank 2 sensor 2 lean system or low voltage read our article on oxygen sensor codes for help with this chevy check engine light code. There are many different problems issues than can cause the cruze s computer to throw the p0171 trouble code. Common engine codes page 3 chevy sonic owners forum. P0106 manifold absolute pressurebarometric pressure. This dtc is very similar to p0174 chevrolet, and in fact your vehicle may show both codes at the same time.
P0171 fuel trim ft system too lean, bank 1 chevrolet. Pdf download of chevrolet factory service repair manuals chevrolet apv, astro, avalanche, aveo, bel air, beretta, blazer, camaro, caprice, captiva, cavalier. Chevrolet cruze cel diagnosis p0171 failed pcv valve. Camshaft position sensor b bank 1 on a chevrolet cruze. Chevy malibu forum is the best place for owners of the sedan to connect with the community and discuss mpg, mods, and more. P01 chevrolet meaning the powertrain control module supplies a voltage of about 450 mv between the front heated oxygen sensor ho2s high and low signal circuits. In particular, it looks for issues that may result in harmful and polluting.
Code p0030 ho2s heater control circuit bank 1 sensor 1 oxygen sensor code p015b o2 sensor delayed response lean to rich bank 1. I havent had a chance to monitor the fuel efficiency. Hi guys, i need help on this chevrolet cruze 2010 1. Unlike the p1101 code listed above, the p0171 code can be caused by a lot a myriad of issues. One of the most common trouble codes with the chevy cruze is the p0171 code. Check engine light recently popped up on my chevrolet cruze. There can be a lot of things that can cause your check engine light to come on, but there are a few that are more common than others.82 1325 1460 767 934 429 381 158 714 810 774 1202 1265 1488 890 1098 188 1189 1150 1382 684 765 1000 1250 801 14 657 1533 1113 554 103 445 1428 516 1028 1167 463 459 1356 338 1435 615 642 895 59